Function y = - x + B when the value range of independent variable x is - 3

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• 1. In the plane rectangular coordinate system, the image of a function is a line segment AB and ab ∥ X axis. Given that the coordinate of point a is (2. - 1) AB = 5, then the coordinate of point B is?
• 2. Find the value range of independent variable x in the following function y = 4x ^ 2 + 3x-5 Find the value range of the independent variable x in the following functions 1.y =4x^2+3x-5 2.y =(1+2x) / 1+x-6x^2 3.y = √5+3x 4.y =1 / √2x-1
• 3. 6. In the function y = 1 / radical 12-4x, the value range of the independent variable x is? It's a process!
• 4. The range of independent variable X of function y = root 4x-1 / 2 is
• 5. Find the value range of the independent variable x in the following functions (1) y = x & # 178; - X-2 (2) y = 3 / 4x-5 (3) y = radical (x + 3) Find the value range of the independent variable x in the following functions (1)y=x²-x-2 (2)y=3/4x-5 (3) Y = radical (x + 3)
• 6. Drawing method of image with absolute value How to draw the image when f (x) has absolute value? How to draw an image with absolute value of independent variable x?
• 7. The picture and drawing method of absolute value function in grade two y=|x| y=2|x| y=-5|x| y=|x+3| y=|x|-4 y=|x+5| y=|x-6| y=-5|x|+3 y=5|x|-3 It's OK to talk about the method. How many can you write~
• 8. Absolute value of piecewise function in senior one
• 9. If f (x) defined on R satisfies f (x + y) = f (x) + F (y) + 2XY (x, y ∈ R), f (1) = 2, then f (- 3) is equal to () A. 2B. 3C. 6D. 9
• 10. If f (x) defined on R satisfies f (x + y) = f (x) + F (y) + 2XY (x, y ∈ R), f (1) = 2, then f (- 3) is equal to () A. 2B. 3C. 6D. 9
• 11. The product of all real numbers with absolute values less than 3 is () A6 B12 C0 D-6 The process
• 12. The product of all real numbers whose absolute value is less than 5 is?
• 13. It is known that the quadratic function f (x) satisfies f (- 1) = 0, and that 8x ≤ f (x) ≤ 4 (x ^ 2 + 1) holds for X ∈ R (1) Find f (1); (2) Find the expression of F (x); (3) Let g (x) = (x ^ 2-1) / F (x), define the field x ∈ D, and give a number operation program: x1 → x2 = g (x1) → X3 = g (x2) → Let xn = g (x (n-1)), if x1, X2 If xn does not belong to D, stop the operation and give X1 = 7 / 3. Please write the set D = {x1, X2 ,xn}.
• 14. Given the function y = x2 + ax + 3 about X, where - 1 ≤ x ≤ 1, try to find the maximum and minimum of the function under the following conditions respectively （1）0＜a＜2（2）a＞2
• 15. Given the function f (x) = x 2 + ax + 3, when x ∈ [- 2,2], f (x) ≥ A is constant, and the minimum value of a is obtained The answer is [- 7,2] I use the change principal element, that is, (1-x) a + x2 + 3 > = 0, but the answer is [- 7,7 / 3] Why not solve it
• 16. Given the function f (x) = cosx + ax ^ 2, when x is greater than or equal to 0, the minimum value of a with F (x) greater than or equal to 1 is k, and the value of K is obtained
• 17. Given the function f (x) = (x ^ 2 + ax + 11) / (x + 1) (a ∈ R), if f (x) ≥ 3 holds for any x ∈ n *, then the minimum value of a is equal to (17 / 3)
• 18. Given the function f (x) = x 2 + ax + 3, when x ∈ [- 2,2], f (x) ≥ A is constant, and the minimum value of a is obtained
• 19. When m, y = (M-4) x to the power of 2m + 1 + 4x-5 is a linear function
• 20. If the function y = (m-2) x3-m2 + m is a linear function, then the value of M is___ ．